NJG1608KB2
- 1 -
Ver.2005-06-17
SPDT SWITCH GaAs MMIC
GENERAL
DESCRIPTION
PACKAGE OUTLINE
NJG1608KB2 is a SPDT switch IC featured low insertion
loss, medium handling power and high isolation.
This device is suitable for switching of Tx/Rx signals at
sub-microwave applications.
This switch exhibits wide frequency range from 100MHz
to 6.0GHz at low operating voltage of 2.5V, and is operated
up to 25dBm at 3.0V operating voltage.
The Pb free FLP6 package is applied.
FEATURES
Single low voltage control
+2.5~+6.5V
Low insertion loss
0.3dB typ. @f=2.5GHz
0.35dB typ. @f=2.5GHz
0.6dB typ. @f=5.85GHz
High isolation
29dB typ. @f=2.5GHz
30dB typ. @f=2.5GHz,
18dB
typ.
@f=5.85GHz
Handling power
30dBm typ. @f=2.5GHz, V
CTL
=3.0V
Ultra small & ultra thin package
FLP6-B2 (Package size: 2.0x2.1x0.75mm)
PIN CONFIGURATION
TRUTH TABLE
V
CTL1
H
L
V
CTL2
L
H
PC P1
OFF
ON
PC P2
ON
OFF
NJG1608KB2
"H"=V
CTL (H)
, "L"=V
CTL (L)
Pin connection
1.P1
2.GND
3.P2
4.VCTL2
5.PC
6.VCTL1
KB2 Type
Top view
Orientation Mark
3
2
1
4
5
6
NJG1608KB2
- 2 -
ABSOLUTE MAXIMUM RATINGS
(T
a
=25C, Z
s
=Z
l
=50
)
PARAMETER SYMBOL
CONDITIONS
RATINGS
UNITS
Input Power
P
in
V
CTL (L)
=0V, V
CTL (H)
=3.0V 32 dBm
Control Voltage
V
CTL
V
CTL (H)
-V
CTL (L)
7.5
V
Power Dissipation
P
D
At on PCB board
550
mW
Operating Temp.
T
opr
-40~+85 C
Storage Temp.
T
stg
-55~+150 C
ELECTRICAL CHARACTERISTICS
(with application circuit, V
CTL (L)
=0V, V
CTL (H)
=3.0V, Z
S
=Z
l
=50
, T
a
=25C)
PARAMETERS SYMBOL CONDITIONS
MIN
TYP
MAX
UNITS
Operating voltage (LOW)
V
CTL (L)
-0.2 0 0.2 V
Operating voltage (HIGH)
V
CTL (H)
2.5 3.0 6.5 V
Control current
I
CTL
f=2.0GHz
- 5 10 A
Insertion loss 1
LOSS1
f=2.0GHz
-
0.3
0.45
dB
Insertion loss 2
LOSS2
f=2.5GHz
-
0.35
0.5
dB
Insertion loss 3
LOSS3
f=5.85GHz
0.6
0.8
dB
Isolation 1
(PC-P1, PC-P2, P1-P2)
ISL1 f=2.0GHz,
26 29 - dB
Isolation 2
(PC-P1, PC-P2, P1-P2)
ISL2 f=2.5GHz,
27 30 - dB
Isolation 3
(PC-P1, PC-P2, P1-P2)
ISL3 f=5.85GHz
16 18 dB
Pin at 1dB
compression point 1
P
-1dB
(1) f=2.5GHz
28 30 - dBm
Pin at 1dB
compression point 2
P
-1dB
(2) f=5.85GHz
25 27 - dBm
VSWR
(PC, P1, P2)
VSWR
f=0.1~5.85GHz, ON State
-
1.4
1.6
Switching time
T
SW
f
in
=0.1~5.85GHz -
100
-
ns
NJG1608KB2
- 3 -
TERMINAL INFORMATION
No. SYMBOL
DESCRIPTION
1 P1
RF port. This port is connected with PC port by controlling 4
th
pin (V
CTL(H)
)
to 2.5~6.5V and 6
th
pin(V
CTL(L)
) to -0.2~+0.2V. An external capacitor is
required to block the DC bias voltage of internal circuit
2 GND
Ground terminal. Please connect this terminal with ground plane as close
as possible for excellent RF performance.
3 P2
RF port. This port is connected with PC port by controlling 6
th
pin (V
CTL (H)
)
to 2.5~6.5V and 4
th
pin(V
CTL(L)
) to -0.2~+0.2V. An external capacitor is
required to block the DC bias voltage of internal circuit.
4 VCTL2
Control port 2. The voltage of this port controls PC to P1 state. The `ON'
and `OFF' state is toggled by controlling voltage of this terminal such as
high-state (2.5~6.5V) or low-state (-0.2~+0.2V). The voltage of 6
th
pin
have to be set to opposite state. The bypass capacitor has to be chosen
to reduce switching time delay from 10pF~1000pF range.
5 PC
Common RF port. In order to block the DC bias voltage of internal circuit,
an external capacitor is required.
6 VCTL1
Control port 1. The voltage of this port controls PC to P2 state. The `ON'
and `OFF' state is toggled by controlling voltage of this terminal such as
high-state (2.5~6.5V) or low-state (-0.2~+0.2V). The voltage of 4
th
pin
have to be set to opposite state. The bypass capacitor has to be chosen
to reduce switching time delay from 10pF~1000pF range.
NJG1608KB2
- 4 -
ELECTRICAL CHARACTERISTICS
(0.1~6.0GHz, with application circuit, without DC Blocking Capacitor, Losses of external circuit are excluded.)
1.0
1.2
1.4
1.6
1.8
2.0
0.0
1.0
2.0
3.0
4.0
5.0
6.0
VSW
R
Frequency (GHz)
PC VSWR vs. Frequency
( PC-P1 ON, VCTL1=0V, VCTL2=3V )
-40
-35
-30
-25
-20
-15
-10
-5
0
0.0
1.0
2.0
3.0
4.0
5.0
6.0
I
s
ola
t
i
on (dB)
Frequency (GHz)
PC-P1 Isolation vs. Frequency
( VCTL1=3V, VCTL2=0V )
-40
-35
-30
-25
-20
-15
-10
-5
0
0.0
1.0
2.0
3.0
4.0
5.0
6.0
I
s
ola
t
i
on (dB)
Frequency (GHz)
PC-P2 Isolation vs. Frequency
( VCTL1=0V, VCTL2=3V )
-2.0
-1.5
-1.0
-0.5
0.0
0.0
1.0
2.0
3.0
4.0
5.0
6.0
I
n
se
r
t
ion
Los
s
(dB)
Frequency (GHz)
PC-P2 Insertion Loss vs. Frequency
( VCTL1=3V, VCTL2=0V )
-2.0
-1.5
-1.0
-0.5
0.0
0.0
1.0
2.0
3.0
4.0
5.0
6.0
I
n
se
r
t
ion
Los
s
(dB)
Frequency (GHz)
PC-P1 Insertion Loss vs. Frequency
( VCTL1=0V, VCTL2=3V )
NJG1608KB2
- 5 -
ELECTRICAL CHARACTERISTICS
-1.4
-1.2
-1.0
-0.8
-0.6
-0.4
-0.2
16
18
20
22
24
26
28
30
32
34
36
VCTL2=2V
VCTL2=2.5V
VCTL2=3V
VCTL2=3.5V
VCTL2=4.5V
VCTL2=5.5V
VCTL2=6.5V
I
n
se
r
t
i
o
n
Los
s
(d
B)
Input Power (dBm)
( f=2.5GHz, VCTL1=0V )
PC-P1 Insertion Loss vs. Input Power
-1.8
-1.6
-1.4
-1.2
-1.0
-0.8
-0.6
-0.4
10 12 14 16 18 20 22 24 26 28 30 32 34
VCTL2=2V
VCTL2=2.5V
VCTL2=3V
VCTL2=3.5V
VCTL2=6.5V
I
n
se
r
t
i
o
n
Los
s
(d
B)
Input Power (dBm)
( f=5.85GHz, VCTL1=0V )
PC-P1 Insertion Loss vs. Input Power
-100
-90
-80
-70
-60
-50
14
16
18
20
22
24
26
28
30
32
34
36
VCTL2=2V
VCTL2=2.5V
VCTL2=3V
VCTL2=3.5V
VCTL2=4.5V
VCTL2=5.5V
VCTL2=6.5V
Input 2fo
2
nd Ha
r
m
o
n
ic
s
(dBc
)
Input Power (dBm)
( PC-P1 ON, f=2.5GHz, VCTL1=0V )
2nd Harmonics vs. Input Power
-90
-80
-70
-60
-50
-40
-30
14
16
18
20
22
24
26
28
30
32
34
36
VCTL2=2V
VCTL2=2.5V
VCTL2=3V
VCTL2=3.5V
VCTL2=4.5V
VCTL2=5.5V
VCTL2=6.5V
Input 3fo
3
r
d Harm
oni
c
s
(dBc
)
Input Power (dBm)
( PC-P1 ON, f=2.5GHz, VCTL1=0V )
3rd Harmonics vs. Input Power
0
5
10
15
20
25
16
18
20
22
24
26
28
30
32
34
36
VCTL2=2V
VCTL2=2.5V
VCTL2=3V
VCTL2=3.5V
VCTL2=4.5V
VCTL2=5.5V
VCTL2=6.5V
Control
C
u
rr
e
n
t 2
(
A)
Input Power (dBm)
( PC-P1 ON, f=2.5GHz, VCTL1=0V )
Control Current 2 vs. Input Power
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